Wilwood master cylinder

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Curious if anyone is using Wilwood's master cylinders for power brakes. I am looking at the p/n 260-8555 with 1" bore for power brakes, disc/disc setup. I have a Wilwood 2-piston front caliper and an ElDorado 1-piston rear setup. It says that these have a 2:1 front bias so I am curious how do they perform. I have a rear line proportioning valve that I will use to fine tune.

https://www.wilwood.com/mastercylinders/mastercylinderprod?itemno=260-8555

I currently have a Scott Drake 1" bore master that is leaking after two years  :mad: that I want to replace.

 

Mjordan

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I’m looking at something similar to use with the mustangsteve adapters for cobra brake conversion. Supposedly wilwood has a m/c that’ll work with disc/disc and no power assist. To clean up the engine bay some. You may call them and see what they recommend with your setup.

 
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I was looking at the same Master as well. Hopefully we get some feedback.

 

Bentworker

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Nope.

I am running the economy version. 1” bore aluminum V6 mustang one from Mustang Steve with metric bubble ports on the wrong side.

That does look like a nice master cylinder, but in all honesty I kind of like the safety of a quick visual check on fluid level that a translucent reservoir provides.

 
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Nope.

I am running the economy version.  1” bore aluminum V6 mustang one from Mustang Steve with metric bubble ports on the wrong side.  

That does look like a nice master cylinder, but in all honesty I kind of like the safety of a quick visual check on fluid level that a translucent reservoir provides.
Do you have power/manual brakes? Discs and/or drums?

 
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Tnfastbk

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Bump. Is anyone using Wilwood master cylinders?
I am running a Wilwood MC but I'm also running 4 wheel manual disc brakes with NO proportioning valve. BTW they work great with no issues for several years now. The help line for Wilwood was very helpful.

https://www.wilwood.com/MasterCylinders/MasterCylinderLanding

Please mail us at the following address:

Wilwood Engineering

4700 Calle Bolero

Camarillo, CA 93012

USA

Please call, fax or email us:

Phone: (805) 388-1188

Fax: (805) 388-4938

Email Sales/Tech Support

Hours: 6:00am - 5:00pm PST Monday - Friday

 

Bentworker

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Nope.

I am running the economy version.  1” bore aluminum V6 mustang one from Mustang Steve with metric bubble ports on the wrong side.  

That does look like a nice master cylinder, but in all honesty I kind of like the safety of a quick visual check on fluid level that a translucent reservoir provides.
Do you have power/manual brakes? Discs and/or drums?

Power disc / disc.

 
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Bump. Is anyone using Wilwood master cylinders?
I am running a Wilwood MC but I'm also running 4 wheel manual disc brakes with NO proportioning valve. BTW they work great with no issues for several years now. The help line for Wilwood was very helpful.

https://www.wilwood.com/MasterCylinders/MasterCylinderLanding

Please mail us at the following address:

Wilwood Engineering

4700 Calle Bolero

Camarillo, CA 93012

USA

Please call, fax or email us:

Phone: (805) 388-1188

Fax: (805) 388-4938

Email Sales/Tech Support

Hours: 6:00am - 5:00pm PST Monday - Friday
Which Wilwood MC do you have?
Sent from my SAMSUNG-SM-G930A using Tapatalk

 
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Canted 393

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Just used some gentle persuasion of the replacement stainess steel lines.

 

Canted 393

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Just used some gentle persuasion of the replacement stainess steel lines.
But i did put the prop valve on the fender well and hooked up right to the mastercylinder.

 
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I am running the Wilwood with power brakes, but I am running the 1 1/16 bore size and will be swapping to the 1" down the road. I bought a pressure gauge and pressures at all 4 calipers were acceptable, but I felt could stand to be a bit higher. I think it will work beautifully for you

 

Tnfastbk

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Bump. Is anyone using Wilwood master cylinders?
I am running a Wilwood MC but I'm also running 4 wheel manual disc brakes with NO proportioning valve. BTW they work great with no issues for several years now. The help line for Wilwood was very helpful.

https://www.wilwood.com/MasterCylinders/MasterCylinderLanding

Please mail us at the following address:

Wilwood Engineering

4700 Calle Bolero

Camarillo, CA 93012

USA

Please call, fax or email us:

Phone: (805) 388-1188

Fax: (805) 388-4938

Email Sales/Tech Support

Hours: 6:00am - 5:00pm PST Monday - Friday
Which Wilwood MC do you have?

Sent from my SAMSUNG-SM-G930A using Tapatalk

I will have to pull my records to see which exact bore size I have but Wilwood can answer specific question for your car.
 
Joined
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Messages
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Location
Madison, WI
My Car
1971 M-Code Mach 1 w/408C stroker
I am running the Wilwood with power brakes, but I am running the 1 1/16 bore size and will be swapping to the 1" down the road.  I bought a pressure gauge and pressures at all 4 calipers were acceptable, but I felt could stand to be a bit higher.  I think it will work beautifully for you
Thank you. That's the information I needed! I thought the 1" was the right one but I wanted to make sure. 

I have couple questions for you:

-What is your vacuum at idle?

-What calipers do you have on front and rear?

 
Joined
Aug 14, 2014
Messages
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484
Location
Madison, WI
My Car
1971 M-Code Mach 1 w/408C stroker
I am running a Wilwood MC but I'm also running 4 wheel manual disc brakes with NO proportioning valve. BTW they work great with no issues for several years now. The help line for Wilwood was very helpful.

https://www.wilwood.com/MasterCylinders/MasterCylinderLanding

Please mail us at the following address:

Wilwood Engineering

4700 Calle Bolero

Camarillo, CA 93012

USA

Please call, fax or email us:

Phone: (805) 388-1188

Fax: (805) 388-4938

Email Sales/Tech Support

Hours: 6:00am - 5:00pm PST Monday - Friday
Which Wilwood MC do you have?

Sent from my SAMSUNG-SM-G930A using Tapatalk

I will have to pull my records to see which exact bore size I have but Wilwood can answer specific question for your car.
I contacted them a second time a few days ago and did not hear back from them. When I contacted them the first time they keep insisting that it won't work unless I have 18 mmHg of vacuum. Although I understand that I need vacuum for the brakes to work better, it is not to say that there are alternatives to low vacuum. They keep insisting that I change to manual brakes. I found it ironic that a company that sells "high performance" muscle car brakes got so hanged up on the vacuum level when most performance muscle cars have bigger cams and lower vacuum than factory. After a few emails I got fed up and told them to move past the vacuum issue and suggest a size for the master cylinder, but they never replied. Needless to say, I am very frustrated with their customer service. I will just buy the 1" bore master cylinder.

 
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